Shenzhen WAYJUN Industrial Automation is a HI-tech company of designing, researching  4-20mA/0-5V to RS485 Data Acquisition Module,analog signal isolated converter / conditioners,PT100 temperature /speed/frequency signal isolators/splitter,isolated amplifier,Digital Signal to RS485/232 Module,Min-power DC DC converters.Our products also carry the CE approval for safety.WAYJUN's products are widely used in the industry power fields of control, electric power, electronic instrument, medical electronic, rail transit, communication, telecom, automation,Medical  and Test & Measurement etc.Our products are sold all over the world.Create maximum value for customers is our constant aim